package com.hospital.common.core.utils;

import com.alibaba.fastjson.JSONObject;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.URL;

/**
 * @author lvyao
 * @description http帮助类
 * @date 2021/2/6
 */
public class HttpUtil {
    private static String returnString;

    public static String httpURLConnectionGET() {
        try {
            URL url = new URL("http://172.16.1.9:9312/restentrance/receive");    //把字符串转换为URL请求地址
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();// 打开连接
            //addRequestProperty添加相同的key不会覆盖，如果相同，内容会以{name1,name2}
            connection.addRequestProperty("from", "sfzh");  //来源哪个系统
            //setRequestProperty添加相同的key会覆盖value信息
            //setRequestProperty方法，如果key存在，则覆盖；不存在，直接添加。
            //addRequestProperty方法，不管key存在不存在，直接添加。
            connection.setRequestProperty("user", "user");  //访问申请用户
            InetAddress address = InetAddress.getLocalHost();
            String ip = address.getHostAddress();//获得本机IP
            connection.setRequestProperty("ip", ip);  //请求来源IP
            connection.setRequestProperty("encry", "00000");
            connection.connect();// 连接会话
            // 获取输入流
            BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
            String line;
            StringBuilder sb = new StringBuilder();
            while ((line = br.readLine()) != null) {// 循环读取流
                sb.append(line);
            }
            br.close();// 关闭流
            connection.disconnect();// 断开连接
//            System.out.println(sb.toString());
            returnString = sb.toString();
        } catch (Exception e) {
            e.printStackTrace();
//            System.out.println("失败!");
            returnString = e.getMessage();
        }
        return returnString;
    }

    public static String httpURLConnectionPOST(String param) {

        try {
            //传递参数
//        String Parma = "?cardType={}&cardID={}";
            String POST_URL = "http://172.16.1.9:9312/restentrance/receive";
            URL url = new URL(POST_URL);
            // 将url 以 open方法返回的urlConnection  连接强转为HttpURLConnection连接  (标识一个url所引用的远程对象连接)
            // 此时cnnection只是为一个连接对象,待连接中
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            // 设置连接输出流为true,默认false (post 请求是以流的方式隐式的传递参数)
            connection.setDoOutput(true);
            // 设置连接输入流为true
            connection.setDoInput(true);
            // 设置请求方式为post
            connection.setRequestMethod("POST");
            // post请求缓存设为false
            connection.setUseCaches(false);
            // 设置该HttpURLConnection实例是否自动执行重定向
            connection.setInstanceFollowRedirects(true);
            // 设置请求头里面的各个属性 (以下为设置内容的类型,设置为经过urlEncoded编码过的from参数)
            // application/x-javascript text/xml->xml数据 application/x-javascript->json对象 application/x-www-form-urlencoded->表单数据
            // ;charset=utf-8 必须要，不然妙兜那边会出现乱码【★★★★★】
            //addRequestProperty添加相同的key不会覆盖，如果相同，内容会以{name1,name2}
//            connection.addRequestProperty("Content-Encoding", "gzip");  //是否压缩
            //setRequestProperty添加相同的key会覆盖value信息
            //setRequestProperty方法，如果key存在，则覆盖；不存在，直接添加。
            //addRequestProperty方法，不管key存在不存在，直接添加。
            connection.setRequestProperty("sourceorgan", "PDY70810661030219A1002");  //访问申请用户
            InetAddress address = InetAddress.getLocalHost();
            String ip = address.getHostAddress();//获得本机IP
            connection.setRequestProperty("targetorgan", "");  //请求来源IP
            connection.setRequestProperty("sourcedomain", "010");
            connection.setRequestProperty("targetdomain", "NPT0000001");
//        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
            connection.setRequestProperty("Content-Type", "application/json;charset=utf-8");
            // 建立连接 (请求未开始,直到connection.getInputStream()方法调用时才发起,以上各个参数设置需在此方法之前进行)
            connection.connect();
            // 创建输入输出流,用于往连接里面输出携带的参数,(输出内容为?后面的内容)
            DataOutputStream dataout = new DataOutputStream(connection.getOutputStream());
            // 将参数输出到连接
            dataout.writeBytes(param);
            // 输出完成后刷新并关闭流
            dataout.flush();
            dataout.close(); // 重要且易忽略步骤 (关闭流,切记!)
            // 连接发起请求,处理服务器响应  (从连接获取到输入流并包装为bufferedReader)
            BufferedReader bf = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
            String line;
            StringBuilder sb = new StringBuilder(); // 用来存储响应数据
            // 循环读取流,若不到结尾处
            while ((line = bf.readLine()) != null) {
                //sb.append(bf.readLine());
                sb.append(line).append(System.getProperty("line.separator"));
            }
            bf.close();    // 重要且易忽略步骤 (关闭流,切记!)
            connection.disconnect(); // 销毁连接
            System.out.println(sb.toString());
            returnString = sb.toString();
        } catch (Exception e) {
            e.printStackTrace();
            returnString = e.getMessage();
        }
        return JSONObject.toJSONString(returnString);
    }

}
